2025-07-31
Core structure of scaffolding
Uprights: The main vertical support members of the scaffolding, usually spaced 1.2-1.8 meters apart, must ensure that the verticality deviation does not exceed 1/200 of the height.
Transoms: Horizontal members connecting the uprights, divided into longitudinal transoms and transverse transoms, the spacing is determined according to the load calculation, generally not exceeding 1.5 meters.
2025-07-31
Cold-drawn steel process precautions
Rust removal and heading: Before cold drawing, the steel must be derusted (such as mechanical derusting or pickling), and the ends should be rolled to facilitate passing through the die hole.
Lubrication and cooling: Lubricant (such as lime, animal and vegetable oil) must be applied during the drawing process to reduce friction, prevent die wear and steel overheating.
2025-07-31
Application fields of cold-drawn steel
Mechanical Manufacturing: Used for producing high-precision mechanical components (such as gear racks, brake shafts, positioning parts), pneumatic components, hydraulic parts, etc. Its high precision and surface quality meet the needs of precision machining.
Core characteristics of cold-drawn steel
High Precision: Cold drawing technology precisely controls the diameter and shape of the steel, with dimensional errors controlled within ±0.15mm, meeting the processing needs of high-precision mechanical parts.
Excellent Surface Quality: The steel after cold drawing has a smooth surface, free of scale and impurities, and can be used directly in production without additional cleaning or turning, reducing processing costs.
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2025/07
The technological principle of cold-drawn steel
Cold drawing is a process that uses specially made tungsten alloy dies to forcefully pull steel (such as HPB300 grade steel bars with a diameter of 6-10mm) at room temperature, gradually drawing it through die holes of decreasing diameter. During this process, the steel's cross-section is compressed, and it is stretched longitudinally. The internal crystal lattice undergoes slip and distortion, increasing the density of lattice dislocations. This significantly improves tensile strength (by 40%-90%), while reducing ductility and increasing hardness, ultimately resulting in cold-drawn steel (such as cold-drawn low-carbon steel wire) with hard steel properties.
31
2025/07
Characteristics of steel pipes
High Strength: Steel pipes have high tensile, compressive, and bending strength, suitable for structures that bear large loads.
Good toughness: Steel pipes are not easy to break when impacted or vibrated, ensuring high safety.
Lightweight: Compared to solid steel, steel pipes are lighter, making them easier to transport and install.
12
2025/06
Technical advantages of steel supports
Efficient Construction: Steel support construction is simple, fast, and highly mechanized. After erection and pre-stress application, it can quickly provide horizontal support, avoiding the influence of time-space effects. The pre-applied axial force can be dynamically adjusted, which is beneficial for the stability control of deep foundation pits.
12
2025/06
Structural characteristics of steel supports
Steel supports typically use steel pipes, H-beams, and angle steel as materials, with various cross-sectional forms. Common shapes include inverted V-shapes and cross shapes. A typical independent support component consists of an inner pipe, an outer pipe, and a nut assembly. The top of the inner pipe connects to the support structure, and the bottom of the outer pipe connects to the foundation. The connection uses bolts of the same specification (e.g., M10) for easy manual installation and disassembly.
12
2025/06
Application scenarios of disc-button scaffolding
Construction Engineering:
Suitable for exterior scaffolding and formwork support for high-rise buildings, large-span factories, warehouses, etc. Its high load-bearing capacity and stability can meet the needs of complex construction environments.
12
2025/06
Structural characteristics of the plate buckle scaffold
The disc-lock scaffolding is composed of uprights, horizontal bars, and diagonal bars connected through disc-lock nodes. At regular intervals (e.g., 0.5 meters) on the uprights, perforated discs are welded. The ends of the horizontal and diagonal bars have pins that are inserted into the holes of the discs for quick locking. This design makes the scaffolding easier and faster to erect and dismantle without the need for additional tools.
12
2025/06